BGC > Produktsuche > Sodium alginate

Appearance	white or yellowish granular or powder
Viscosity (1% solution)	300 – 500 mpa.s
Assay(on dry basis)	98.0% min
Loss on drying(105o¬C, 2hr)	15% max
PH	6.0 – 7.5
Heavy metals(as Pb)	0.004% max
Lead(Pb)	0.001% max
Arsenic(As)	0.0003% max
Ash	18 – 24%
Particle size
40 mesh	100% pass
Total plate count	2000/g max
Yeasts and moulds	100/g max

Appearance: white or yellowish granular or powder | Viscosity (1% solution): 300 – 500 mpa.s | Assay(on dry basis): 98.0% min | Loss on drying(105o¬C, 2hr): 15% max | PH: 6.0 – 7.5 | Heavy metals(as Pb): 0.004% max | Lead(Pb): 0.001% max | Arsenic(As): 0.0003% max | Ash: 18 – 24% | Particle size: 40 mesh 100% pass | Total plate count: 2000/g max | Yeasts and moulds: 100/g max

Molecular Formula: C5H7O4COONa
Hazard Symbols: Xi
WGKGermany: 1
HS Code: 39131000

IP/BP/USP

Trade name	Sodium Alginate
INCI name	Algin
EINECS / EC No.	57606-04-9

Molecular formula:C6H9O7Na

Assay:99.0%min

Description
Sodium alginate is the sodium form of alginate. Alginate is a linear, anionic polysaccharide consisting of two form of 1, 4-linked hexuronic acid residues, β-d-mannuronopyranosyl (M) and α-l- guluronopyranosyl (G) residues. It can be arranged in the form of blocks of repeating M residues (MM blocks), blocks of repeating G residues (GG blocks), and blocks of mixed M and G residues (MG blocks). Commercially available alginate currently originates from algae. Alginate has wide applications. For example, one of its most important role is being used as wound dressing materials for the treatment of acute or chronic wounds. The use of alginate crosslinking to make hydrogels for cell encapsulation is also quite valuable. The emergence of various kinds of its derivatives recently has further extended its application.

Applications
Sodium alginate can be used as a flavorless gum. It is used by the foods industry to increase viscosity and as an emulsifier. It is also used in indigestion tablets and the preparation of dental impressions.
Sodium alginate (NaAlg) and its modified forms have been widely used as membranes in pervaporation (PV) separation of aqueous‐organic solutions because of the hydrophilic nature and versatility to modify/tune their structures to achieve the desired separation.
Sodium alginate is a polymer which can be extracted from brown seaweed and kelps. It is one of the structural polymers that help to build the cell walls of these plants. It has some unusual properties and a wide variety of uses.